mark ackerman u.s. epa, region 5 april 5, 2013
TRANSCRIPT
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Mark AckermanU.S. EPA, Region 5April 5, 2013
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Overview Overview of the CWA and the NPDES Program Need for General Permit and Beneficial Impact General Permit ILG62‐What is it? Permit Mechanics Technical and Economic Feasibility
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Clean Water Act Goals By 1985…
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Clean Water Act Goals Cntd.
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TBELs and WQBELs CWA Section 301 (b)(2)(A)
“Elimination of pollutant discharges to waters of the U.S.” … “if such elimination is technologically and economically achievable”
CWA Section 302(a) Whenever discharges of pollutants…with the application of effluent limitations required under section 301(b)(2) interfere with the attainment of maintenance of water quality, that water quality effluent limits shall be established to attain or maintain the water quality
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NPDES Program Section 402 of the CWA authorizes EPA to issue an National Pollutant Discharge Elimination System (NPDES) permit to any person discharging any pollutant or combination of pollutants from a point source into waters of the United States
NPDES Permits Restrict the types and amounts of pollutants
Accomplished by requiring dischargers to meet Technology Based Effluent Limitations; or
Water Quality Based Effluent Limitations
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Overview Overview of the CWA and the NPDES Program Need for General Permit and Beneficial Impact General Permit ILG62‐What is it? Permit Mechanics Technical and Economic Feasibility
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Public Health and Water Resource Impacts “A Waterborne outbreak of Norwalk‐Like Virus among Snowmobilers” Published in Journal of Infectious Diseases, volume 187, 2003
Undersized onsite septic system contaminated the water supply
Highlights the importance of proper design and maintenance for onsite wastewater treatment systems
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Installation Statistics
0%
10%
20%
30%
40%
50%
60%
0
2,000
4,000
6,000
8,000
10,000
12,000
14,000
1996
1998
2000
2002
2004
2006
2008
2010
Total Systems Installed
Surface DischargingSystemsPercentage of Total
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Overview Overview of the CWA and the NPDES Program Need for General Permit and Beneficial Impact General Permit ILG62‐What is it? Permit Mechanics Technical and Economic Feasibility
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ILG62‐What is it? NPDES General Permit that covers new and replacement surface discharging systems
Eligibility requirements: Receive and process domestic sewage only, Flow through the system is 1500 gallons per day or less, Connection to sewer is 200 feet from the property or greater, and
All alternatives to a surface discharging system are technically or economically infeasible.
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You’re Not Eligible If… Lots created 6‐months after the effective date of the permit
Already covered by a different NPDES permit Discharges to 303(d) listed waters Discharges mixed with material other than domestic sewage
Discharges from more than one home, or other structure
A sewer connection is within 200 feet of your property
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Effluent LimitsDischarges to WOUS Discharges to Lakes, Ponds,
or Impoundments Max. Daily Limits in mg/L
BOD5 or COD (45 or 55) TSS or Turbidity (45 or 15
NTU) Dissolved Oxygen (4.0
minimum) Fecal Coliform (400
CFU/100 mL) Total Resid. Chlorine (0.038) pH (6.0‐9.0 Std. Units) Oil, Odor, Color, Floating
Debris (None Detectable)
Max. Daily Limits in mg/L BOD5 (20) TSS (24)
Fecal Coliform (400 CFR/100 mL)
Total Resid. Chlorine (0.038) pH (6.0‐9.0 Std. Units) Oil, Odor, Color, Floating
Debris (None Detectable)
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Overview Overview of the CWA and the NPDES Program Need for General Permit and Beneficial Impact General Permit ILG62‐What is it? Permit Mechanics Technical and Economic Feasibility
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Permit Mechanics‐HomeownerTech. Feasibility
AnalysisCan your site support a zero discharge system?
Economic AnalysisEvaluate least expensive zero
discharge system.
Install the least expensive zero
discharge system or;
Apply for an individual NPDES permit from the state of Illinois
Submit an NOI
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Yes No
Eligible
Not Eligible Not Eligible
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Permit Mechanics‐Business or Government
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Tech. Feasibility Analysis
Can your site support a zero discharge system?
Install the least expensive zero
discharge system or;
Apply for an individual NPDES permit from the
state of IllinoisSubmit an NOI
NoYes
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Overview Overview of the CWA and the NPDES Program Need for General Permit and Beneficial Impact General Permit ILG62‐What is it? Permit Mechanics Technical and Economic Feasibility
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Technical Feasibility
Soil Investigation
Site Evaluation
Technical Feasibility Analysis
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Economic Feasibility• $ Least expensive zero discharge system
• Corresponding O&M $
Annualized Cost over 30
years
• AGI year 1• AGI year 2• AGI year 3
Average AGI
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Economic Eligibility Criteria IF annualized cost over 30 years > 2% of average AGI
Eligible for coverage Submit an NOI
IF annualized cost over 30 years < 2% of average AGI Not eligible for coverage Install zero discharge system; or Apply for an individual NPDES permit
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Example‐Economic Feasibility Given:
Total system cost (purchase & installation) $7,500 Corresponding annual O&M cost = $350‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
The annualized cost over 30 years = $895/yr ($75/month) Find corresponding AGI such that:
Annualized cost = 2% * AGI $895 = 2% * AGI AGI = $44,750/year
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Photo References http://www.militarymentalhe
alth.org/blog/2012/03/fishing‐is‐more‐than‐just‐a‐relaxing‐pastime‐it‐can‐help‐with‐ptsd‐symptoms/
http://rowerunning.co.uk/2008/04/why‐some‐dont‐like‐open‐water‐swimming/
http://chenected.aiche.org/plant‐operations/water‐industrial‐discharge‐permits/
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